Veronica Alford pleaded guilty Monday in the shooting death of 13-year-old Monae Turnage, whose body was found in an alley a day after the incident under trash bags.

Authorities said the lab was able to recover DNA belonging to Alford from clothes Monae had been wearing.

Alford's sentencing is scheduled for June 13.

The trial of Martinez Armstrong, the half-brother of the 13-year-old boy who admitted to shooting Monae, is scheduled to start Wednesday. Armstrong is accused of recklessly leaving a firearm out, allowing the two boys to find it.

The boys were sentenced in juvenile court in May 2012. The 13-year-old was placed in a treatment facility for up to three years. The 12-year-old boy who admitted to helping move her body was ordered to be court monitored while living with a relative.